Refrigerator Built into Van
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THE first of a number of refrigerated vans has been delivered to Express Dairies, Ltd. A feature of these vehicles is that the refrigeration system is builtin, the compressor used being driven from the vehicle engine by V-belt off the crankshaft. In other respects the equipment is conventional and incorporates a condenser, liquid receiver, 'strainer-drier and evaporator.
Each of the three compartments into which the body is divided has its own cooling service, hold-over plates being used for evaporation. The body is of light-alloy construction with the insulator hermetically sealed between the outer and inner skins.
The main condensing surface consists of an aluminium-finned copper-tube assembly mounted immediately ahead of the radiator and behind the grille. This condenser is cooled by the airflow from the fan when the vehicle is stationary and the engine is running, and by a combination of fan draught and the effect of ram air when the vehicle is moving.
By using hold-over plates the desired temperature is maintained when the refrigeration plant is stopped, which, of course, happens when the engine is switched off.
The plant is to the design of Messrs.' Penfold and Partners, 120-122 Victoria Street, London, W.1, and the bodies are being built by Hawson, Ltd., Sunburyon-Thames, Middx, LONDON STUDENTS' COURSE
AN evening course to prepare students for the graduateship examination of the Institute of Transport will be held at the City of London College, Moorgate, E.C.2, during the session starting on September 26. Persons interested in transport who do not wish to take the examinations will also be welcomed,
Last session's students may enrol again on September 19, and others on September 20 and 21, from 5 p.m. to 8 p.m.